What is the product of 2x - 5 and 3x2 + 5x - 7? Write your answer in standard form. Show your work. Is the product of 2x – 5 and 3x2 + 5x - 7equal to the product of 5x – 2 and 3x2 + 5x - 7? Explain your answer.

Answers

Answer 1

Answer:

a) 6x³ − 5x² − 39x + 35

b) no

Step-by-step explanation:

(2x − 5) (3x² + 5x − 7)

Distribute:

3x² (2x − 5) + 5x (2x − 5) − 7 (2x − 5)

Distribute again:

6x³ − 15x² + 10x² − 25x − 14x + 35

Combine like terms:

6x³ − 5x² − 39x + 35

5x − 2 is the opposite of 2x − 5, so you would get the negative of the answer from part (a).


Related Questions

how would you factor a quadratic expression like 9x^2-4

Answers

Hello, we need to see it as a difference of two squares as we know that for all a and b real numbers

[tex]a^2-b^2=(a-b)(a+b)[/tex]

So, here

[tex]9x^2-4=(3x)^2-2^2=(3x-2)(3x+2)[/tex]

Voila !

Thank you

Simplify the expression to a polynomial in standard form:
(x - 2)(x^2 - 2x- 9)

Answers

Answer:

x^3-4x^2-5x+18

Step-by-step explanation:

When you distribute (x-2)  (x^2-2x-9) you get x^3-2x^2-2x^2+4x-9x+18  combine like terms and you get your answer

10 friends share six pizzas equally. What fraction of a pizza does each friend get?

Answers

Answer:

10 friend=6 pizza now,

1 friend gets =10÷6

=5÷3

If the length of a box of Milk Duds box is tripled, how much longer will the box be?​

Answers

Answer:

3x

Step-by-step explanation:

x = original length of the box.

~theLocoCoco

What is the value of -42 +(5-2)(-6)?

Answers

Answer:

-60

Step-by-step explanation:

-42+3×(-6)

-42-(3×6)

-42-18

-60

Jamila paid $6 for a movie ticket, $1.59 for a small box of popcorn, and $2.50 for a drink at a movie theater. Which operation(s) would help Jamila find the total amount she spent at the theater?

Answers

Answer:

addition

Step-by-step explanation:

Answer:

It would be addition since you can see thats litterly the problem

Step-by-step explanation:

Find the midpoint of the segment with the following endpoints.
(-1,9) and (-7,1)

Answers

Answer:

1 1/3

Step-by-step explanation:

m=y2-y1/x2-x1

or rise over run

m=1-9/(-7)-(-1)= (-8)/(-6)= 1 1/3

Answer:

11/3

Step-by-step explanation:

1. What does the slope represent of a graph? (Definition
of Slope)
help!

Answers

Answer:

In mathematics, the slope or gradient of a line is a number that describes both the direction and the steepness of the line. ... Slope is calculated by finding the ratio of the "vertical change" to the "horizontal change" between (any) two distinct points on a line.

Step-by-step explanation:

1/2x=14
Help please I’ve been stuck on this how do I check it?

Answers

Divided both sides by 1/2
1/2x/(1/2)=14/(1/2)
x=14/(1/2)=14/0.5=28
The answer will be x=28

The expression that represents the area of this rectangle is . When b = 10, the area of the rectangle is square units.

Answers

Answer: 8b and 80

Step-by-step explanation: H3h3

The Area of Rectangle is 80 unit².

What is Area of rectangle?

The Area of rectangle is the product of its length to its width.

Area of rectangle = length x width

Given:

Expression that represents the area of this rectangle is 8b.

Now, b = 10

As, area of rectangle = l x w

area of rectangle = 8b

area of rectangle = 8 x 10

area of rectangle = 80 unit².

Hence, the area is 80 unit².

Learn more about Area of rectangle here:

https://brainly.com/question/20693059

#SPJ2

Determine the range and injective of the function.

j(x) = -x - 1

Answers

Answer and Step-by-step explanation:

Solution:

Range:

Let f(x) = -x-1

                        Here a=0 and b= -1, x=-b/a

Put the values, we get

       X= - (-1)/0 = infinity

Hence the range of the function f(x) = (-∞, ∞)

Injective:

A function is said to be injective if f(x1) = f(x2), gives x1=x2

Let f(x1) = -x1-1

 f(x2) = -x2-1

 f(x1) = f(x2)

. An airplane took off and reached an altitude of 10,000 feet in 25 minutes. How many feet per minute, on average, did the airplane climb

Answers

Answer:

400 feet per minute

Step-by-step explanation:

Because it's feet per minute, you'll divide 10,000 by 25

400 feet per minute

hope this is good enough

Chance left the park traveling 10 mph. Then, 2 hours later, Malik left traveling the same direction at
14 mph. How long until Malik catches up with Chance?

Answers

Answer:

8 hours

Step-by-step explanation:

after 8 hours chance will have traveled 100 miles and malik will have traveled 102 miles.

Jordan’s credit card has an APR of 10.59%, compounded monthly. He is required to make a minimum payment of 3.96% of his current balance every month. At the beginning of March, Jordan had a balance of $628.16 on his credit card. The following table shows his credit card purchases over the next few months. Month Cost ($) March 50.81 March 48.04 April 77.36 April 32.40 April 49.20 May 25.79 May 79.39 May 79.08 If Jordan makes only the minimum monthly payments in March, April, and May, what will his balance be after he makes the minimum payment for May? (Assume that interest is compounded before the monthly payment is made, and that the monthly payment is applied at the end of the month. Round all dollar values to the nearest cent.) a. $1,094.10 b. $988.97 c. $967.60 d. $1,070.23

Answers

Answer:

b. 988.97

Step-by-step explanation:

got a 100 on the test

The balance at the end of May after the minimum payment is made is

$571.64.

What is compound interest?

It is the interest we earned on the interest.

The formula for the amount earned with compound interest after n years is given as:

A = P [tex](1 + r/n)^{nt}[/tex]

P = principal

R = rate

t = time in years

n = number of times compounded in a year.

We have,

P = $628.16

r = 10.59%

n = 12

t = 1/12

The amount after March.

A = 628.16 [tex](1 + 0.1059)^{12\times0.08[/tex]

A = $633.48

Monthly payment.

= 3.96/100 x 633.48

= $25.09

Remaining amount.

= 633.48 - 25.09

= $609.39

The amount after April.

A = 609.39 [tex](1 + 0.1059)^{12\times0.08[/tex]

A = $614.55

Monthly payment.

= 3.96/100 x 614.55

= $24.34

Remaining amount.

= 614.55 - 24.34

= $590.21

The amount after May.

A = 590.21 [tex](1 + 0.1059)^{12\times0.08[/tex]

A = $595.21

Monthly payment.

= 3.96/100 x 595.21

= $23.57

Remaining amount.

= 595.21 - 23.57

= $571.64

Thus,

The balance at the end of May is $571.64.

Learn more about compound interest here:

https://brainly.com/question/13155407

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An automobile manufacturer introduces a new model that averages 27 miles per gallon in the city. A person who plans to purchase one of these new cars wrote the manufacturer for the details of the tests, and found out that the standard deviation is 3 miles per gallon. Assume that in-city mileage is approximately normally distributed. What is the probability that the person will purchase a car that averages less than 20 miles per gallon for in-city driving

Answers

Given :

An automobile manufacturer introduces a new model that averages 27 miles per gallon in the city.

Standard deviation , S.D = 3 miles per gallon .

To Find :

The probability that the person will purchase a car that averages less than 20 miles per gallon for in-city driving.

Solution :

We have to find the probability , [tex]P(X\leq 20)[/tex] .

Here , we will use the excel function

So ,

[tex]P(X\leq 20)=NORMADIST( 20, 27 , 3 , 1 )=0.009815[/tex] .

Therefore , probability is 0.009815 .

33 feet is how many meters? Hint: 1 ft ≈ 0.305 m Round your answer to the nearest tenth. (HELP!)

Answers

Answer:

10.1m

Step-by-step explanation:

1ft = 0.305m

33ft = 33 x 0.305m = 10.065m ≈ 10.1m

33 ft because it’s 33 ft

An 8ft length of 4 inch wide crown molding costs $14. How much will it cost to buy 56 ft of crown molding?

Answers

Answer:

$98

Step-by-step explanation:

56/8= 7

7x14=98

Hope this helps.

Marsha was shopping for a new dishwasher and researched the different models she could afford. Using Marsha’s frequency distribution table, determine the median price for dishwashers. Price,p($) Frequency,f 250 2 275 4 280 1 290 2 310 6 315 2 320 1 325 7 330 1 335 1 340 1 350 2 ​

Answers

Answer

310

Step-by-step explanation:

add them all up and divide by 12

I NEEF A FAST ANSWED​

Answers

Answer:

y value

Step-by-step explanation:

bc it is xiydid5is5is58w

Answer: Y - value

Good luck

Hotel manager salary and 61,410 which is a 15 increase over the previous year salary what was the previous year salary

Answers

do you mean 15% increase?

study of class attendance and grades among first-year students at a state university showed that, in general, students who missed a higher percent of their classes earned lower grades. Class attendance explained 36% of the variation in grade index among the students. What is the numerical value of the correlation between percent of classes attended and grade index?

Answers

Yess yes yes yes ffnjtssnm

Find two consecutive integers whose product is 12.

Answers

Answer:

3 and 4

Step-by-step explanation:

Look at the factors of 12 and list them out

1 and 12

2 and 6

3 and 4

Find the 2 numbers that are consecutive

3 and 4

what is 0.004 ⃝ 4.00 *

Answers

0.004 < 4.00

Hope this helps! :)

The graph of f(x)=2^x is shown in black (k). Match each transformation of this function with a graph below.

Answers

Answer:

Step-by-step explanation:

From the graph attached,

Black curve represents a function f(x) = 2ˣ

When this curve is reflected over the x-axis image of the function will be,

g(x) = -[tex]2^{x}[/tex] [Red curve]

Similarly, curve represented by h(x) = [tex]2^{-x}[/tex] is the blue curve [image of f(x) reflected over y-axis]

When this curve is reflected over the x-axis, image of the function will be,

h'(x) = [tex]-2^{-x}[/tex] [green curve]

[tex]-2^{x}[/tex] → Red

[tex]-2^{-x}[/tex] → Green

[tex]2^{-x}[/tex] → Blue

Find the slope of the line passing through each of the following pairs of points.
(5.7), (-6, -3)
What is this

Answers

Answer: [tex]\frac{10}{11}[/tex]

Step-by-step explanation:

To find the slope, you want to use the formula [tex]m=\frac{y_2-y_1}{x_2-x_1}[/tex].

[tex]m=\frac{-3-7}{-6-5}=\frac{-10}{-11} =\frac{10}{11}[/tex]

Now we know the slope is [tex]\frac{10}{11}[/tex].

3. Fill in the blanks so that the answer to this number sentence is correct: 2ab​

Answers

Answer:

where's the question or the picture of the question

Factorise Fully x^2 + x

Answers

Answer:

X(x+1)

Step-by-step explanation:

If it is wrong I'm sorry.

How many pounds are equal to 3 tons?​

Answers

Answer:

6000 pounds Hope this helps :)

Step-by-step explanation:

Multiply by mass value 2000

Answer:

6000

Step-by-step explanation:

Which statement is true about this function for all values of x < 4

The function is positive.
The function is decreasing.
The function is increasing.
The function is negative.

Answers

Answer:

The Function is Decreasing.

Step-by-step explanation:

I hope this helps you :)

Answer:

I would also say that the function is decreasing.

Step-by-step explanation:

Find the SUM of the first 20 terms in the following sequence.
2, 5, 8...

Answers

Step-by-step explanation:

2+3=5+3=8

2+5+8+11+14+17+20+23+26+29+32+35+38+41+44+47+50+53+56+59=

610

hope it helps!

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